Toggle-bolt.



IVI. H. PAINE & W. S. WILLIAMS.

TOGGLE BOLT APPLlcATIoN FILED JUNE 9.1913.

- 'lav anniaac.

MATHEWH. PAINE, or GLENELLYN, AND'WINFIELD'S; WI'LLmMsoF CHICAGO,

' f ILLINOIS.

TOGG-LE-BOLT.

, To will icl-torn t 'may concern;

Be it known that We, lvIAT'nIEWI-I.A PAiNE,f

' .of Glenellyinlllinois, and VINFIELD S. VST-1 1.-

' Liners, of 932 E. Ll'th St., Chicago, Illinois,

l provenient in .Toggle-Bolts, of Which citizens of' the United States of America,

have invented a. certain new and useful Imfolloiving is a specification.

Themain objectso fouranvention are to provide 'an improved form of toggle-bolt, .to provide an `improved anchoring device;4

' capable of being passedthrough an apen;

ture and capable of expanding in to the position of 'atruss on the oppositerside after the bodyof the device. has passed through the holeg-to provide such an expansion device as Will preventthe possibility of return of the toggle member through the hole irrespective of the position of the object through which the member is introduced; to provide an improved toggle-bolt *where the members are so related that they automatically adapt themselves. to the surface of the obje'ctafter passing through the aperturc; t`oprovidesuch a device as will lfreely pass into and expand in an internal -space practically no greater than" the length of' one of the trusses, thus accomplishing a universal adaptability; `to provide a device which is ready to take hold immedlately the same has passed through the aperture;to

provide a toggle-bolt' Whose bearing surfaces f l'are-normally ad-justably disposedin a posi--v tion parallel tothe inner surface of the object through which, it. is introduced; to provide'an improved expansion device capable of folding forintroduction through ain aper- 'ture and capable of immediate automatic eX- pension on the reverse side.l

. ings, in'wh'ich:

" .An illustrative embodiment of 'Figure 1`is a flat vievv of'a toggle-bolt constructed according to thisl invention, the `diil'erentpartszshovvn in their relative posi-A tion When expanded for attaching. Fig, 2

l `illustrates the Vposition of the' toggle-bolt folded in the hole just prior to its eXpansion. on the'. opposite side. Fig.'3 isa cross section of .the truss .members ',showing'the construction and 'assemblage' of same. Fig. 4 is a vievv taken on line aa of Fig, 3.4 Fig. 5 isv a perspective. of oneofthe .truss memthe i our inven: tionis shown in the accompanylng drawto slip over the bolt like a collar.

Specification of Letters Patent. Papigqgll'dll Jun@ jul, 1918 Application med June 9, 1913.4 serial No. 772,59o.,

. bers. Fig. '6 isa perspective of nut with trunnions. Fig; 7 is across section 'of a .modiiied form-of our device; y .In the primary form shown inthe draivings, the device comprises a bolt l having afthreadedl shank adapted. toengage with the threads 8 of threadedA nut Y6, said nut having trunnions 7 adapted` to form bearings for the pivotal operation of the ltrusses '2, 2L The 4.holdlngor expansion memberis composed of two trusses2, 2 as shown in Fig.l 5, eachofsaid-trusses constructed of one piece -Omtal having flanges 3,' 3 'formving -a channel. lVeprovlde apertures 4, l-

transversely perforating the flange walls of the truss 2, the said holes belngvadjacent to 4o ne end of 'the said flange Walls, the opposlte ends of said flange Walls being tapered so that, the parts will adapt themselves to horizontal alineinent when swung into poof these trusses pivotally swung upon the trunnions 7,.;7fofthe nut 6, but inreverse relation.' We provide a 'neck indenture 5 'sitionas shownin Fig. 3. ,We provide two in .the body of the'trusses 2, 2 at a point 'adjacent to the holes 4., l in the said truss,v

said indent-ure adapted tov permitthe said sov trusses freedom of action in relation to the;

truss members'Q, 2 andadapted to equallyA and-automatically expand the said members when. -free of compression. The coiledv spring here shown' isjapreferable type oftension means,

In Fig. 7 We show aforni oftension'in the Way of a .flat spring, which may be athin stripeither side of thebolt., or a broad'strip With a hole therein, adapted Other tension means may suggest themselves4 to one engaged in the artnfThe. Wings, nut, and tension means together constitute a tog- AW'e also provide .that the neck A5 in the truss 2.1nay come into contact with the screw threaded `element l, as inFig. 7 so that when the saidtrnss elements 2-2 arel in normal expanded condition the strain ofthe same is brought to bear upon the screw element 1,

thus forming a solid support, while at the same time the screw threaded element can be propelled forward or backward.

We provide that the truss elements shall overlap at the point of pivotal engagement with the trunnions of the nut, the holes '4 on the opposite sides of"'each registering with the holes on the other; thus pivotally balancing the truss elements, and so formed that one will fold into the other when pressed into parallel alinement, IVe primarily denominate the anchoring members 2, 2 as trusses; and we preferably form them into a channel also refer to thesame as wings, winged members and anchoring wings, for the reason that they operate as such.

When the device is to be used, a hole of suitable size is bored in the body or wall 14, to which the object ,iste be made fast by means ofthis device; thebolt- 1 with the expansion member in distended position is then inserted head foremost into the hole 14; a slight pressure upon the bolt 1 operates to force the elements 2, 2 into parallel alinement with the bolt 1, thus permitting Athe entire device to freely enter and pass through the hole; -immediately the bases of the truss elements 2, 2 have passed through the said hole 14 the spring forces the truss elements so the shoulder adjacent to the pivotal points of one come in Contact with the inside channel walls ofthe 0ther, the points nearest their pivotal point forming the apex of a triangle, their bases in hori` Zontal extension each with the other, 'extending in opposite directions on either side of the bolt, thus presenting-a solid truss for holding strain; they are also exibly disposed so that the contour of the surface a ainst which the truss is drawn does not a ect the adjustment of the threaded bolt, when the device is drawn into filial position the truss elements clamp the bolt tightly. It will be readily observed-that the device herein shown is adapted to walls at any and all angles, that it is immediate and positive in its adjustment to the surface after it haspassed through the aperture, that there is Letters Patent is practically no necessity for take-up area to the bolt, and that it cannot return through the aperture whatsoever be its position, without external volition.

We show this preferred form of our invention, which illustrates the principle, but we do not limit ourselves 'to this specic form, except as required by the scope of the claims.

What we claim and desire to secure by 1. In an anchoring device, the combinaas shown in the draw-- .ings-to secure lightness and strength: we

tion of a screw,l a nut movable thereon,

trunnions on said nut, two oppositely disposed wings coaxallypivoted upon said trunnions and lia-ving surfaces adapted for engagement with a wall, means to project said wings outwardly from said screw until said wall engaging surfaces stand at substantially right angles to the longitudinalAv` `side, thereo'f--adapted to serve as an axis; a

pair ofV truss elements pivoted coaxially on said lugs-in reverse rela-tion to Aeach otherW adapted to form a truss when projected outwardly from Athe screw; means to force the said truss elements outwardly from the screw and'maintain the same in lateral distension when free. A

-l. A device for the purposes described consisting of a screw; in threaded engagement therewith a nlut having trunnions, adapted to act as an axis; anchoring means pivoted coaxially of each other to said nut and movable laterally from the bolt and outwardly with respect to the same into anchoring position; a spring servingl to fforce the anchoring means laterally from each other and from the screw on said axis-into an anchoring position.

5. In a device of the character described the combination of abolt;-a nut threaded thereon and movable relatively y longitudinally of the bolt; anchoring means pivoted coaxially of each other on said nut and movable laterally from the bolt and outwardly with respect to the same toward the outer end of the bolt into anchoring posi-tion.

6. In an anchoring device the combination of a threaded rod; a nut operating in threaded engagement therewith; lugs upon said nut; apair of anchoring members coaxially pivoted upon said lugs; a spring Voperating upon the said anchoring membersto force theminto anchoring position;

there being meansto limit the lateral and rearward travel ofthe anchoring members and effect .the formation of'a truss.

7. In an anchoring device the combination of a screw; a nut movable upon said screw; lugs upon said nut; two truss members* reversely disposed-having pivotal .points p coincident, coaxially disposed upon said lugs ;"a coiled spring mounted u-pon one of said lugs-.the free ends of said spring operatingl upon the trussmembers to force said truss members into andsustain lthem in: opposed lateral truss-engagement -with the bolt.,` M

8. In an anchoring device the' combiiia` tion of a threaded bolt; a nut relatively mov ablelalong the same; saidnut havingl oppositely disposed lugs.- extending laterally from the bolt; 'a pair'of anchor wings#- each having a pair of parallel side por-l tions-pivoted upon` saidy lugs around thel same'pivotal airis;v and means adapted to causethe wings to beswung laterally with respect to eachother around their axis into anchoring position. I i

'9. In a device for the purpose described the combination of, a threaded bolt; a nut mounted upon the threaded bolt; a pair `vvof anchor wings pivoted upon the nutya 'spring actingbetween the wings tending to force them apart and around theiraxis;

'10.- In an anchoring device the combina. tion of a screw.; a nut thereon; two truss members coaxially pivoted upon said nut; a

spring operating-upon said trussmembers; said screw-adapted t o act as' the center` and abutment of thesaid truss members, the

- v'said truss members adapted to coperate l consisting of 'a pair of anchor wingspivot# ally associated with said bolt, said wings. 'having their inner Aextremities: impinging` truss.

with' the saidl screw 'formi an anchoring 11. In a deviceof the character described the combination with a threaded bolt, .of a

. unitary mechanism adapted 'to be freely propelled over the longitudinal area of the bolt,

against the sides ofV said bolt when the said wingsare swung outwardly into final anchoring position.an'd automatic means tending to swing' said wings outwardly into anchoring. position...V Y

'12. I n a device of the character described the'combination with a threaded bolt, of a unitary mechanism adapted to be freely propelled-overthe longitudinal area of the bolt,

l position.

consist-ing of a pair of anchor wings pivotally-associated with said bolt, said anchoring members having their inner extremities en-y gaging the screw 4thread ofV said boltV when the said anchoring members are swung outwardly into-'f iinal 'anchoring position, c and lautomatic means tending kto swing said an- .choring members outwardly into anchoring 1:3..In an tion with a threaded bolt, of a unitary mechanism adaptedto be freely propelled-over theV longitudinal, area ofthe bolt, consisting ofl .two truss members pivotally associatedwith said bolt, .spring vmeans teiid-ing tovforce saidtruss members into their anchoring posiv tween them.

anchoring device `the combina-Y with to forman anchoring truss, when said truss. members are vswung outwardly into anchoring position, said truss members clamping the bolt between them.

15. In .adevice ofthe character described -the combination with-a scre'wthreadefil bolt,

a nut movable thereon, a pair of oppositely disposed anchoring wings swingingly associatedwith said-nut, said nutrand said wings adapted to freely -travel as a unit the longitudinal area of the bolt, and automatic means tending vto project/,said wings outwardly into anchoring position.

` 16. In a device of the character described the combination-with ascrew threaded bolt, a nut movable thereon, a pair of opposit'ely disposed anchoring wings swingingly associated with' said nut, and automatic means tending to proj ect'said wings outwardly into anchoring position, said wings having inner i eXtreniities iinpingiiig Aagainst the screw thread 'of said bolt when said wings are swung outwardly.

v17. In a` device of the character described the combination vwith a screw threaded bolt,l a nut movable thercon,a pair of oppositely disposedY anchoring wings swinginglyassociated with said nut, said nut and said 4sociated A withsaid' bolt, automatic means tendingjto force' said truss members` into their vanchdring position, said bolt adapted to act asthe centerl and :abutment of the- -said truss members and coperating there# wings adapted to freely travel as a unit the y longitudinal ai'eaof the bolt, and spring means-tending to project said wings out- ,wardly` int`P anchoring lposition.

1S. Ina device of the` character described the combination with a screw ythreaded bolt, a nut movable thereon, a pair of oppositely disposed anchoring wiiigsrswingingly asy l,

sociated with said nut,l and springr means ltending to project said wings outwardly into anchoring position, said wings having inner ,I extremities impinging against the4` screwv thread `of Asaid bolt when said wings are swung outwardly. i

119i 'In a device ofthe character described the combination with a'threaded bolt, ofa pair of anchoring membersswinginglyf'associated with said bolt and adapted when said members are swung outwardly into anchoring positofi to clamp the bolt between spreading movement to a point Where their.

them, and meansfor automatically swing- 1 ing 'said anchoring members outwardly into anchoring position; said anchoring members being adapted to freely travel the longitudinal area of the bolt, and coperate with said bolt to form a clamp.

20. In adevice of the character described the combination With a threaded bolt, of a pair of anchoring members pivotally associated With said bolt, the inner 'extremities of 'said anchoring members cooperating to form a truss out of said anchoring members, and means for automatically swinging said anchoring members outwardly into anchoring position; said anchoring members be* Aing adapted to freely travel the longitudinal area ofthe bolt, and coperate with said bolt to-k form a clamp.

21. A toggle bolt comprising, in combination, a screw threaded member, ay collar threaded upon the member, Wings pivotally secured to the collar and having Wall engagving surfaces, andY tension means for. nor-y mally causing the'wings to spread,the wings being arranged t'o engage with the sides of the screw threaded member toV limit their Wall engaging surfaces substantially aline with each other, substantially as described. 22. A toggle bolt comprising, in combination, a screw threaded member, a collar threaded upon the screw threaded member, a pair of Wings pivotally'secured to the collar, the Wings being 'U-shaped in cross section and arranged to fold upon the screwthreaded member with the side Walls of the Wingsoverlapping the screw-threaded member, and tension means `flor. normally causing the Wings to assume a position transverse to that of the screw-threaded member, substantially as described.-

. 2.3.,A toggle bolt comprising, in combination, a screw/threaded member; a collar threaded upon the member, Wings pivotally secured to the collar, and means for normally causing the Wings to lie transversely of the collar, the Wings being arranged to engage with the sides of the screw-threaded member to limit their Apivotal movement toY a point transversely of the member, sub stantially as described.

24. A toggle bolt comprising, in combination, a screwthreaded member, coaXially pivoted wings carried by the member, the wings being U-shaped in cross section and arranged to fold upon the member with the side Walls of the Wings overlapping the member, and continuously acting means for normally causing the Wings to lie trans versely of the member, substantially asidescribed.

25. A toggle bolt comprising, in Vcombination, a screw-threaded member, coaxially pivoted Wings carried by' the ,member, the Wings being U-shaped in cross-section and arranged 4to fold upon the member With the side Walls of the Wings overlapping the, 

